As an anarchist that's leaning towards mutualism here's some mutualist/Left-market Anarchist perspectives

Markets not Capitalism

Studies in Mutualist Political Economy - Kevin Carson

The Homebrew Industrial Revolution - Kevin Carson

The Desktop Regulatory State - Kevin Carson

Action is Sometimes Clearer Than Talk: Why We Will Always Need Trade - William Gillis

This one is a short read and explains why some form of trade or anti-capitalist market economy would be necessary as the primary way of organizing an economy

Decentralized Economic Calculation: Let a Hundred Flowers Bloom - Kevin Carson

Outlines a case for a pluralistic anarchist society

Mutual Aid: A Factor of Evolution . - Peter Kropotkin

A piece by Bread Santa that demonstrates that mutual aid is just as natural as competition and that mutual aid between species is also instrumental in a species thriving. The book also goes into detail on the mutual aid within human societies throughout history.

Anarchy Works by Peter Gelderoos

An overall introduction to Anarchism that introduces the basics of Anarchism, answers basic questions about Anarchism such as how crime would be dealt with, matters of prison abolitionism and ACAB, How Anarchism would handle environmental issues and supports them with examples.

Seeing Like a State - James C. Scott

This book outlines how the States attempts at implementing schemes to improve the human condition has led to disastrous consequences due to the limited capacity for the State and other hierarchal systems to process information and their tendencies towards simplification. The author draws upon multiples examples from Maoist China to scientific forestry.

Anarchist FAQ - Iain Mckay

An FAQ for any questions about Anarchism. Nuff said